:root {
  --bg: #0B0E13;
  --surface: #151A21;
  --surface-high: #1E252F;
  --outline: rgba(255, 255, 255, .08);
  --primary: #14B8A6;
  --primary-dim: #0F766E;
  --on-primary: #00201C;
  --green: #34D399;
  --amber: #F59E0B;
  --red: #EF4444;
  --on-air: #DC2626;
  --text: #F1F5F9;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 22px;
}

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--outline);
  background: var(--bg);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  font-size: 16px;
  letter-spacing: 0.01em;
}

.brand svg { display: block; flex: none; }

nav.site-nav {
  display: flex;
  gap: 20px;
  font-size: 14px;
}

nav.site-nav a {
  color: var(--text-2);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

nav.site-nav a:hover { color: var(--text); }
nav.site-nav a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--primary);
}

/* ---------- hero ---------- */

.hero {
  padding: 64px 0 16px;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 420px;
  background: radial-gradient(120% 90% at 20% 0%, rgba(20, 184, 166, 0.10) 0%, rgba(11, 14, 19, 0) 68%);
  pointer-events: none;
}

.hero .wrap { position: relative; }

.hero .glyph { margin-bottom: 26px; }

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 650;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(28px, 7vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--text);
}

.tagline {
  margin: 0 0 8px;
  font-size: clamp(20px, 3.4vw, 22px);
  line-height: 1.35;
  color: var(--text);
}

.subtagline {
  margin: 0 0 26px;
  font-size: 16px;
  color: var(--primary);
  font-weight: 650;
}

.lede {
  font-size: 16px;
  color: var(--text-2);
  max-width: 62ch;
}

/* ---------- page content ---------- */

main { padding-bottom: 72px; }

.page { padding-top: 46px; }

h2 {
  margin: 44px 0 12px;
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 650;
  color: var(--text);
}

h3 {
  margin: 30px 0 8px;
  font-size: 16px;
  font-weight: 650;
  color: var(--text);
}

p { margin: 0 0 16px; color: var(--text-2); }
p.strong-copy { color: var(--text); }

ul { padding-left: 1.15rem; margin: 0 0 16px; color: var(--text-2); }
li { margin-bottom: 9px; }
li strong { color: var(--text); }

a { color: var(--primary); }
a:hover { color: var(--text); }

strong { color: var(--text); }

.updated {
  margin: -6px 0 26px;
  font-size: 14px;
  color: var(--text-3);
}

/* ---------- components ---------- */

.note {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-left: 3px solid var(--primary);
  border-radius: 0 12px 12px 0;
  padding: 16px 18px;
  margin: 0 0 26px;
  color: var(--text-2);
  font-size: 14px;
}

.note strong { color: var(--text); }
.note :last-child { margin-bottom: 0; }

/* semantic variants — meaning, not decoration */
.note-danger { border-left-color: var(--red); }
.note-danger strong { color: var(--red); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0 8px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 650;
  font-size: 16px;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid var(--outline);
  background: var(--surface-high);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dim));
  border-color: transparent;
  color: var(--on-primary);
}

.btn-primary:hover { filter: brightness(1.08); color: var(--on-primary); }
.btn-ghost:hover { border-color: var(--primary); color: var(--text); }

.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  margin: 20px 0 8px;
  padding: 0;
  list-style: none;
}

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: 14px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--text);
}

.card:hover { border-color: var(--primary); background: var(--surface-high); color: var(--text); }

.card .card-title {
  display: block;
  font-weight: 650;
  font-size: 16px;
  margin-bottom: 4px;
}

.card .card-desc {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
}

.feature-list { list-style: none; padding: 0; }
.feature-list li { padding-left: 22px; position: relative; }
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.faq h3 { color: var(--text); }

/* ---------- contact ---------- */

.contact-box {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: 14px;
  padding: 22px 24px;
  margin: 24px 0 8px;
}

.contact-box p { margin-bottom: 14px; }
.contact-box .btn-row { margin: 0; }

/* inline text button that reads as a link */
.btn-inline {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--primary);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.btn-inline:hover { color: var(--text); }

.contact-hint {
  font-size: 12px;
  color: var(--text-3);
  margin: 14px 0 0;
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--outline);
  padding: 26px 0 40px;
  font-size: 14px;
  color: var(--text-3);
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer a { color: var(--text-2); text-decoration: none; }
.site-footer a:hover { color: var(--primary); }
.site-footer nav { display: flex; gap: 18px; flex-wrap: wrap; }

@media (max-width: 560px) {
  .hero { padding-top: 42px; }
  nav.site-nav { gap: 16px; }
}